CN104233120A - Bulk iron-based amorphous alloy material - Google Patents
Bulk iron-based amorphous alloy material Download PDFInfo
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- CN104233120A CN104233120A CN201410493972.9A CN201410493972A CN104233120A CN 104233120 A CN104233120 A CN 104233120A CN 201410493972 A CN201410493972 A CN 201410493972A CN 104233120 A CN104233120 A CN 104233120A
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- amorphous alloy
- based amorphous
- alloy material
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Abstract
The invention discloses a bulk iron-based amorphous alloy material. The bulk iron-based amorphous alloy material is characterized in that a general formula of the bulk iron-based amorphous alloy material is FeaBbYcNbdTie, wherein in the formula, a is not smaller than 65 and not greater than 75, b is greater than 15 and smaller than or equal to 25, c is greater than 0 and smaller than or equal to 5, d is greater than 0 and smaller than or equal to 5, and e is smaller than or equal to 5, wherein a, b, c, d and e are atomic percents of corresponding elements in the alloy and meet the relationship that the summation of the a, the b, the c, the d and the e is equal to 100. According to the bulk iron-based amorphous alloy material disclosed by the invention, sponge titanium with low price is used to replace expensive high-purity metal niobium, so the production cost is greatly reduced; besides, the bulk iron-based amorphous alloy material has the characteristics of simple preparation process, strong forming capability of the amorphous alloy, excellent thermal stability and mechanical property and good magnetic performance.
Description
Technical field
Metallic substance of the present invention belongs to amorphous alloy field, particularly a kind of be applied to soft magnetic materials and structured material there is good soft magnetism, high mechanical strength and the new iron-based amorphous alloy material compared with large-amorphous forming capacity.
Background technology
Fe-based amorphous alloy is one of most widely used at present non-crystaline amorphous metal, and compared with the amorphous alloy material of other system, raw materials cost is low, and there is high strength, high rigidity, good erosion resistance, high thermostability, excellent soft magnetic performance, receives and pays close attention to widely.But lower amorphous formation ability makes this kind of alloy can only occur with the form of strip, silk or powder, have impact on its range of application to a certain extent.Nineteen ninety-five, Akihisa Inoue etc. utilize the method for copper mold successfully to prepare Fe-(Al, Ga)-(P, C, S, B) iron-base block amorphous alloy first.After this, a series of Fe base block amorphous alloy with good soft magnetic performance is in succession developed and studies.This is comprising Fe-Al-Ga-P-C-B-Si and the Fe-B system Fe-based amorphous alloy with better soft magnetism, there is the Fe-Cr-Mo-C-B system Fe-based amorphous alloy of excellent erosion resistance, there is high amorphous formation ability, the intensity that critical diameter reaches centimetre-sized is " amorphous steel " of 3000 ~ 4000MPa, and intensity is more than the Fe-Co-Nb-Si-B system Fe-based amorphous alloy etc. of 4000MPa.2005, the people such as Shen Jun have successfully been obtained the Fe that overall dimension reaches 16mm
41co
7cr
15mo
14c
15b
6y
2block metal glass is block Fe-based amorphous alloy maximum up to now.
Although the preparation of block Fe-based amorphous alloy achieves long-range progress in recent years, but these alloy systems or be limited by high manufacturing cost or cannot reach service requirements due to product size and performance perameter, its limitation in production application leaks.Therefore, exploitation has that lower manufacturing cost, soft magnetism are excellent, the block Fe-based amorphous alloy material of satisfactory mechanical property and larger forming of glass ability, for the popularization of Fe-based amorphous alloy and industrial application significant.
Summary of the invention
The object of this invention is to provide a kind of Composition Design rationally, cost is lower, preparation technology is simple, amorphous formation ability is comparatively strong simultaneously, the block Fe-based amorphous alloy material of thermal stability excellence, soft magnetic performance and satisfactory mechanical property.
Technical solution problem of the present invention adopts following technical scheme:
Block Fe-based amorphous alloy material of the present invention, is characterized in that: the general formula of the composition of described block Fe-based amorphous alloy material is Fe
ab
by
cnb
dti
e, 65≤a≤75 in formula, 15<b≤25,0<c≤5,0<d≤5,0<e≤5, wherein a, b, c, d, e are the atomic percent of respective element in alloy, and meet a+b+c+d+e=100.
The raw material of what alloy raw material of the present invention adopted is industrial application, B adds with the form of ferro-boron, and Ti adds with the form of titanium sponge, and other metal purity controls at more than 99.5wt.%.
Add appropriate rare earth element y in Fe-based amorphous alloy of the present invention, and the content of Y controlling within 5at.%, having remarkable effect for carrying heavy alloyed amorphous formation ability.Y element adds makes system have large negative mixture heat, and and have very strong in conjunction with energy between O element, the stability of liquid phase region can be improve, can the Heterogeneous Nucleation of effectively inhibition of impurities and oxide compound thereof in alloy graining process, contribute to obtaining complete amorphous iron-base block amorphous alloy.
Add appropriate Ti element in Fe-based amorphous alloy of the present invention, and the content of Ti controls within 5at.%.Adding of Ti element and main component element of Fe, can form large negative mixture heat between B, the atom mismatch of alloy system can be improved again, form larger atomic radius ratio, this plays an important role for the interatomic stacking density of raising and topological framework, thus make aluminium alloy have more stable liquid phase region, be conducive to preparing block Fe-based amorphous alloy completely.Also exist stronger in conjunction with energy in addition between Ti element and O element, this also will produce active effect to the crystalline polamer suppressed in aluminium alloy process of setting.
Add appropriate Nb element in Fe-based amorphous alloy of the present invention, and the content of Nb controls within 5at.%.The main purpose that adds of Nb element increases system atom number exactly, and increase the atom mismatch of alloy system further, the system randomness of making becomes large further, and then improves the amorphous formation ability of alloy system.
The preparation method of block Fe-based amorphous alloy of the present invention is prepared by following following steps:
(1) according to the atomic percent of element each in block Fe-based amorphous alloy, take each raw material: B element is added with industrial ferro-boron form, and coordinate technically pure iron adjustment to obtain obtaining Fe constituent content; Y and Nb element employing purity is that the form of pure metal of 99.5wt.% is added; The interpolation of Ti element uses industrial low pure titanium sponge.
(2) raw material is positioned in non-consumable vacuum arc melting furnace, uses mechanical pump and molecular pump that the vacuum tightness of furnace chamber is reduced at least 3 × 10
-3pa, then by the residual oxygen in titanium ingot removing furnace chamber, makes the master alloy ingot of uniform composition at least 4 times under argon atmosphere to raw material melt back.
(3) on the water cooled copper mould master alloy ingot of the uniform composition of preparation being placed in non-consumable vacuum arc melting furnace; melt under the atmosphere of argon shield; utilizing copper mold device to be inhaled fast by molten metal liquid casts onto in mould, prepares bar and the sheet material block iron-base amorphous alloy material of different size.
Compared with prior art, the invention has the advantages that:
The present invention, when not changing traditional non-crystaline amorphous metal preparation technology and equipment, has prepared bulk amorphous alloy material.Replaced the noble metal Nb in original amorphous system by cheapness industrial materials titanium sponge, namely maintain the larger glass forming ability of original system and magnetics and mechanical property, greatly reduce again the manufacturing cost of alloy.Bulk amorphous alloy shows very good mechanical properties and comprises high compressive strength and Vickers' hardness, good soft magnetic performance comprises high magnetic saturation intensity and lower coercive force, embody the enormous industrial application potential of this system iron-base amorphous alloy material, can be widely used in national defense industry and the product for civilian use, as transformer, reactor, mutual inductor etc.
Accompanying drawing explanation
Fig. 1 is Fe
ab
by
cnb
dti
eit is the photo in kind of block Fe-based amorphous alloy different size sample;
Fig. 2 is Fe
72b
20y
4nb
4-xti
x(x=1,2,3,4) are the X ray diffracting spectrum of the overall dimension sample that Fe-based amorphous alloy heterogeneity sample is corresponding;
Fig. 3 is Fe
72b
20y
4nb
4-xti
x(x=1,2,3,4) are the thermal analysis curve of Fe-based amorphous alloy heterogeneity sample;
Fig. 4 is Fe
72b
20y
4nb
4-xti
x(x=1,2,3) are Fe-based amorphous alloy diameter 2mm sample compression experiment stress-strain(ed) curve;
Fig. 5 is Fe
72b
20y
4nb
4-xti
x(x=1,2,3,4) are the magnetic hysteresis loop of Fe-based amorphous alloy diameter 2mm sample.
Embodiment
The present embodiment has prepared the block Fe-based amorphous alloy material sample Fe of different components by above-mentioned preparation method
72b
20y
4nb
4-xti
x(x=1,2,3,4), specifically as shown in table 1:
The Fe of table 1 heterogeneity
ab
by
cnb
dti
ebe non-crystaline amorphous metal and performance thereof
As shown in Figure 1, adopt this technology of the present invention, and by adding the method for various metals, use technically pure iron, ferroboron, titanium sponge and other metals can prepare the tabular iron-base block amorphous alloy sample of the bar-shaped of diameter 2 ~ 6mm and thickness 2mm, width 10mm.
X-ray diffraction method is adopted to characterize the structure of the present embodiment gained sample.The X ray diffracting spectrum of different components non-crystaline amorphous metal and corresponding maximum critical size sample as shown in Figure 2, occurs without obvious sharp peak in collection of illustrative plates, illustrate that the present embodiment successfully can prepare the complete amorphous alloy material of Fe-based bulk, and composition is Fe
72b
20y
4nb
2ti
2non-crystaline amorphous metal, its greatest diametrical dimension reaches 6mm.
Synchronous solving is adopted to characterize the thermodynamical coordinate of gained sample, as shown in Figure 3.The Fe of different ratio is listed in table 1
ab
by
cnb
dti
ebe block Fe-based amorphous alloy and corresponding thermomechanical property parameter thereof.In table, using cheap titanium sponge, reducing the use of precious metal niobium by increasing, while reduction preparation cost, composition is Fe
72b
20y
4nb
2ti
2non-crystaline amorphous metal has maximum supercooled liquid phase sector width (supercooled liquid phase sector width=crystallization temperature T
x-second-order transition temperature T
g) be 103K.
Omnipotent testing machine for mechanical properties is adopted to characterize composition Fe
72b
20y
4nb
4-xti
x(x=1,2,3), the mechanical property of the complete amorphous cylindrical sample of diameter 2mm, length 4mm, as shown in Figure 4, sample has larger compressive strength, and maximum value can reach 3400MPa.
Comprehensive physical character survey meter is adopted to characterize composition Fe
72b
20y
4nb
4-xti
x(x=1,2,3,4), the magnetic performance of diameter 2mm sample, as shown in Figure 5, this system block amorphous alloy material shows good soft magnetic performance.
Claims (1)
1. a block Fe-based amorphous alloy material, is characterized in that: the general formula of the composition of described block Fe-based amorphous alloy material is Fe
ab
by
cnb
dti
e, 65≤a≤75 in formula, 15<b≤25,0<c≤5,0<d≤5,0<e≤5, wherein a, b, c, d, e are the atomic percent of respective element in alloy material, and meet a+b+c+d+e=100.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676432A (en) * | 2016-11-15 | 2017-05-17 | 北京科技大学 | Low-cost and high-forming-capability large iron-base amorphous alloy and composite material thereof |
| CN110724886A (en) * | 2019-09-11 | 2020-01-24 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | High-hardness iron-based amorphous alloy and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04187745A (en) * | 1990-11-21 | 1992-07-06 | Victor Co Of Japan Ltd | Magnetic alloy |
| CN1869276A (en) * | 2006-06-26 | 2006-11-29 | 大连理工大学 | Fe base block amorphous alloy based on Fe-B-Y cluster |
| CN101469394A (en) * | 2008-05-09 | 2009-07-01 | 浙江大学 | Fe-W-Y-B bulk amorphous alloy |
| CN101840764A (en) * | 2010-01-25 | 2010-09-22 | 安泰科技股份有限公司 | Low-cost high-saturation magnetic induction intensity iron-based amorphous soft magnetism alloy |
-
2014
- 2014-09-24 CN CN201410493972.9A patent/CN104233120B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04187745A (en) * | 1990-11-21 | 1992-07-06 | Victor Co Of Japan Ltd | Magnetic alloy |
| CN1869276A (en) * | 2006-06-26 | 2006-11-29 | 大连理工大学 | Fe base block amorphous alloy based on Fe-B-Y cluster |
| CN101469394A (en) * | 2008-05-09 | 2009-07-01 | 浙江大学 | Fe-W-Y-B bulk amorphous alloy |
| CN101840764A (en) * | 2010-01-25 | 2010-09-22 | 安泰科技股份有限公司 | Low-cost high-saturation magnetic induction intensity iron-based amorphous soft magnetism alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676432A (en) * | 2016-11-15 | 2017-05-17 | 北京科技大学 | Low-cost and high-forming-capability large iron-base amorphous alloy and composite material thereof |
| CN110724886A (en) * | 2019-09-11 | 2020-01-24 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | High-hardness iron-based amorphous alloy and preparation method thereof |
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